[PATCH 3/3] cpufreq: Enable big.LITTLE cpufreq driver on arm64

[Rafael J. Wysocki]

On Monday, May 12, 2014 09:46:01 AM Viresh Kumar wrote:
> On 9 May 2014 22:10, Mark Brown <broonie at kernel.org> wrote:
> > From: Mark Brown <broonie at linaro.org>
> >
> > There are arm64 big.LITTLE systems so enable the big.LITTLE cpufreq driver.
> > While IKS is not available for these systems the driver is still useful
> > since it manages clusters with shared frequencies which is the common case
> > for these systems.
> >
> > Long term combining the cpufreq-cpu0 and big.LITTLE drivers may be a
> > more sensible option but that is substantially more complex especially
> > in the case of IKS.
> 
> Yeah, it was left separately for IKS specially :(
> 
> > Signed-off-by: Mark Brown <broonie at linaro.org>
> > ---
> >  drivers/cpufreq/Kconfig.arm | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
> > index 6e05a1e18e52..6a7dd3e958d5 100644
> > --- a/drivers/cpufreq/Kconfig.arm
> > +++ b/drivers/cpufreq/Kconfig.arm
> > @@ -5,7 +5,8 @@
> >  # big LITTLE core layer and glue drivers
> >  config ARM_BIG_LITTLE_CPUFREQ
> >         tristate "Generic ARM big LITTLE CPUfreq driver"
> > -       depends on ARM && BIG_LITTLE && ARM_CPU_TOPOLOGY && HAVE_CLK
> > +       depends on (BIG_LITTLE && ARM_CPU_TOPOLOGY) || (ARM64 && SMP)
> > +       depends on HAVE_CLK
> >         select PM_OPP
> >         help
> >           This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
> 
> Acked-by: Viresh Kumar <viresh.kumar at linaro.org>

I've queued this one up for 3.16, thanks!

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-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.